Spoiler:
Kisame:
「アナタならどうにかこうにかやれる相手でも私じゃあ 分かりませんよ…」
「次元が違う」
"You might be able to somehow defeat him, but me, well I don't know..."
"Our levels are too far apart"

Itachi:
「ああ…やり合えは二人共殺されるか良くて相打ちというところ」
「…たとえ人数を増やしたとしても変わらないだろう」
"Yeah... If we fought him, we might both be killed. If it goes well, we might take him with us."
"Even if the number of people were to increase, this probably wouldn't change"

Kisame
「ラーメン屋で　やっと見付けたはいいが…お守りが　あの゛伝説の三忍゛とは」
「彼が相手では゛木ノ葉のうちは一族゛も゛霧の忍刀七人衆゛の名もかすんでしまう」
"It was good we finally found them by the ramen store, but... his guardian is of those 'Legendary Three Ninja' "
"He, as an opponent, makes 'Konoha's Uchiha clan' and the 'Seven Shinobi Swordmen of the Mist' seem like nothing."

Itachi:
「ああ…しかし……」
「どんな強者にも弱点というのがあるものだ……」
"Yes... However......"
"No matter how strong a person is, he is bound to have a weakness..."